I've read Jennings' Two Stroke tuning book and found the port-time-area timing chapter quite interesting.
I've measure port opening angles, but yet to remove the barrel to measure the port areas.
Has anybody mapped a '30mph' horizontal Garelli cylinder? If so, how do the port-time-area timings compare with Jennings' suggestions?
I'm tempted to widen & smooth the ports if required, although will probably not change durations.
Has anybody done any radical exhaust port raising? What were the results?